I tried the kong thing - which was good...to a point, but they have to be put aside until the thawing process sets in - and Harvey'll still have them...
...but The Mighty Treat Ball! Well, what a FABULOUS invention! and sooooo simple!
It has kept Harvey busy for eons! I love it - it's like a puppy nanny! I got to work, have dinner AND go to the loo all without being jumped on!
Definately recommend for puppies who love their food!